Type-writing machine



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TYPE WRITING MACHINE.

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a W. A. HILL & w. F. POS

TYPE WRITING MAGHINE.

Patented Jan. 14, 1890.

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vW. A. HILL 8; W. I. FOSS:

TYPE WRITING MACHINE.

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W. A. BILL & w. P. FOSS.

TYPE WRITING MACHINE.

Patented Jan. 14,1890. an a! H 1 i l 7 2 V II I, l 77/ N, PETERS. PhelvLIlhognphur. Washiflginn. n. c.

' UNITED STATES PATENT OFFIC WILFORD A. HILL AND WEBSTER F. FOSS, OF WALTHAM, MASSACHUSETTS.

TYPE-WRITING MACIHINE.

SPECIFICATION forming part of Letters Patent No. 419,522, dated January 14, 1890.

Application filed December 1'7, 1887. Serial No. 258,237. (No model.)

ToaZZ whom, it may concern:

Be it known that WG,WILFORDA. HILL and WEBSTER F. Foss, both citizens of the United States, and both residing at Walth'am, in the county of Middlesex and State of Massachusetts, have invented a new and useful Type- Writing Machine,of which the following is a specification.

This invention has for its object to provide a type-writing machine of simple construction and compact form, which shall be capable of rapid operation; and it consists in the several improvements which we will now proceed to describe and claim.

In-the accompanying drawings, forming a part of this specification, Figure 1 represents a front elevation of our improved type-writer. Fig. 2 represents a rear elevation of the same. Fig. 3 represents a top view. Fig. 4 represents an end elevation. Fig. 5 represents a transverse vertical section on line a; as, Fig.1. Figs. 6 and 7 are detail views.

The same letters of reference indicate the same parts in all the figures.

In the drawings, a represents a base or support, from which rise two standards I) b, supporting the horizontal plates 0 c, in which are diagonally-arrangedorificesconstitutingbearings for the type rods or plungers (1. Each rod has two bearingsone in each plate-and is adapted to slide in said bearings. The rods are supported by springs e, which are here shown ascoiled upon the rods and bearing at their lower ends on the upper guideplate 0 and at their upper ends against the keys d of the rodsd. It is obvious, however, that any other suitable form of spring may be adopted to support the type-rods. The rods are inclined at different angles, so that they converge from their upper to their lower ends, the arrangement being such that the printing character dat the-lower end of each rod will strike the paper-supporting bed or platen h at a point which is common to all the rods, so that each rod will present its printing character at the same spot.

f represents a vertically-movable plate, which is supported under the keys cl by a central spring e of any suitable form. Whenever a rod is depressed by downward pressure on the key or but-ton d at its upper end, said key bears upon and depresses the plate f, as shown in dotted lines in Figs. 1 and 5. This movement of the plate f by the depressed type-rod without disturbance of the .other type-rods is made possible by radial slots 'i, Figs. 3 and 5, in the plate f, through which slots the inclined rods 01 and springs 6 pass, said slots permitting the plate to move vertically without moving the rods. It will be seen, therefore, that the plate f is depressed with each type-rod and raised by the spring e at its center, as shown in Fig. 5, upon the release of the depressed rod, these movements of the plate operating the devices presently described,which feed the paper-carriage along after the printing of each letter. Said devices,

as here shown, are as follows: One end of a rod j is jointed at k to an ear on the plate f, and the other end at m to one armof a bellcrank lever 'n, which is pivoted at 0 to a bracket q, affixed to the upper guide-plate c. To the other arm of thebell-crank lever 97. is jointed a pawl p, which engages ratchet-teeth r on a bar .5, affixed to the paper-carriage. When the plate f is depressed, the pawl 19 is moved back the length of a tooth r by the movement imparted to the bell-crank lever'n by the depression of the plate f. 7 When the plate f is raised by the spring 6', a movement in the opposite direction is imparted to the pawl 19, whereby said pawl is caused to move the paper-carriage. in the direction indicated by the arrow in Fig. 2. The carriage is normally pulled in the opposite direction by a spring 23, which is attached at one end to an eye u on the carriage and at the other end to an eye 12 on thebase a. A loose retaining pawl 10, pivoted at a] to a bracket 1), aflixed to the upper guide plate 0, engages the ratchet-bar s, and prevents the paper-carriage from being moved by the spring t while the operating-pawl p is being retracted. The paper-carriage has a substantially-horizontal plate h, to which are affixed the downwardlyprojecting ears f, which are fitted to slide on a fixed guide-rod g. The forward portion of the plate h supports the paper at the point where the printing characters come in contact with the paper.

2" 2" represent ears attached to the forward edge of the plate h at opposite ends of the carriage. In said ears are the bearings for the shaftj of the paper-feeding roll 70', the upper surface of which is about flush with the paper-supporting surface of the plate It. The lower ends of the ears 2" are connected by a horizontal bar 072', extending the entire length of the carriage. At the center of the bar m is a stud n, on which is journaled a roller 0', which is arranged to run on the base a.

1) represents a bell affixed to the base near one end thereof. affixed to the bar on, and are adjustable 1011- gitudinally thereof in slots 1" r. \Vhen the motion of the carriage brings the head q in contact with the bell, the carriage is stopped and the bell is sounded, thus giving notice of the reaching of the end of the line. screw-head Q2 stops the motion of the carriage to the right by coming in contact with a lug or stop g at one end of the base or support a.

A curved plate 8 is arranged over the paper-feeding roll to guide the paper as it passes over the periphery of said roll. surface of said plate is provided with numbered marks or graduations constituting a scale, as shown in Fig. 1. A pointer t, af-

scale.

carriage and located under the plate.

as shown in Fig. 5. paper from injury by the movement of the carriage on the base or by contact with any of the parts of the machine.

The paper-feeding roll is provided at one end with a ratchet 'v', with which engages ai pawl 10. Said pawl is mounted 011 one end of a rod a", supported by two arms Z)" Z)",

whiehare pivoted on the shaft of the paper-. \Vhen it is desired to feed the' feeding roll.

' paper afterthe completion of a line, the rod a" is depressed by downward'pressure on one or both of the keys 0" c, which are located at opposite sides of the plate f, and are at-i tached. to stems cl,which unite ona shank direction indicated by the arrow in Fig. 4, and causes it to rotate the paper-feeding roll The pawls p and w are raised to disengage them from the ratchet-bar s and permit the carriage to be moved back at the end of each line. The raising of the pawls may be; effected by hand or by any suitable mechanism. lVe have here shown levers h" pivotally secured at their inner ends to the key- Two screw-heads q q are The I The outer Upon the release of the key or keys 0" a spring f", attached at one end to' the rod a," and at the other end to a stud g" 3 on the paper-carriage, moves the pawl in the clined upwardly to form shorter arms hearing against the pawls p w, as shown in dotted lines in Fig. 2. When the keys 0" are depressed, the shorter arms of the lovers h" are raised by the tipping movement of the said levers on the fulcrum i and raise the pawls p to sufficiently to clear them from the ratchet-bar s.

It" It represent inkpads, which are pivoted at m" to brackets 71', attached to the standards I). The swinging inner ends of said pads are connected by rods 0" with the actuating-plate f, so that when said plate is depressed the pads are also depressed at their inner ends, as shown in dotted lines in Figs. 1 and 5, thus permitting the depressed type-rod to pass between said pads. \Vhen the plate f rises, the pads are also raised. When the pads are in their normal position, their inked upper surfaces are in contact with the printing characters at the lower ends of the rods, and the pads are depressed simultaneously with the type-rod, so that there is no scraping of any printingcharacter on its inking-pad.

The type-rods are prevented from rotating by keys or splines q", Figs. 5 and 7, attached to the rods and sliding in grooves formed either in the plates 0 c or in bushing-plates 0"", attached to said plates. (See Fig. 7:)

We prefer to detachablysecure'each type .d to its red by a screw or rivet s",asshown in Fig. 6,the type havinga shank-which is fitted in a slot in the lower end of thetype-rod.

At the center of the series of keysis aspacing-key t, the depression of which depresses the plate f and feedsthe-paper to make spaces between words without printing.

It is obvious that various changes may be made in the details of construction herein shown and described without departing from the spirit of our invention.

1. As an improvement in type-writers, the combination of a series of type-carrying'rods, stationary guide-plates therefor, an .upper horizontalfeed-actuatingplate,and the series of springs bearing on the upper one of said stationary guide-plates and against the under side of said feed-actuating plate, substantially as set forth.

2. As an improvement in type-writers having an upper feedactuating-plate, the combination of the paper-feeding roll having a ratchet-wheel at one end, a pawl engaging said ratchet-wheel, the rod to which saidpawl is connected, the spring secured to said me, and the keys located at opposite sides of said plate and provided with stems having a shank at their meeting-point bearing on said rod,

substantially as set forth.

3. As an improvement in type-writers, the combination of a series of converging typecarrying rods, stationary guidc-p'lateshaving orifices through which said rods project, the inking-pads pivoted at one side, the feed-actuating plate, and the rods depending from said plate and connected to said pads, substantially as set forth.

4. The combination of a series of converging type-carrying rods, the stationary guides having a ratchet-bar, a spring which normally impels said carriage in one direction, a positively-reciprocated pawl 10, whereby said carriage is moved against the force of said spring, a loose retaining-pawl 20, whereby the carriage is retained when the pawl p is being retracted, the keys 0'', and the lever secured to said keys and provided with short arms engaging said pawls, substantially as set forth, whereby by depressing said keys said pawls may be simultaneously disengaged from the ratchet-bar, as stated. J WILFORD A. HILL. WEBSTER F. FOSS. Witnesses: V W. H. BENT, CHAS. E. OATER. 

